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Finding the Fourth Proportional to 255,606.51, 352,763.24 and 153,664.98

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Solution

The fourth proportional to 255,606.51, 352,763.24 and 153,664.98 is: 212,073.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,606.51 : 352,763.24 = 153,664.98 : x
  2. Step 2: Convert to fraction form
    255,606.51/352,763.24 = 153,664.98/x
  3. Step 3: Cross multiply
    255,606.51x = 352,763.24 × 153,664.98
  4. Step 4: Simplify right side
    255,606.51x = 54,207,353,687.19
  5. Step 5: Solve for x
    x = 54,207,353,687.19/255,606.51
  6. Step 6: Final answer
    x = 212,073.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.